Re: [PATCH] powerpc: define the variable 'uaccess_flush' as static

[Cédric Le Goater]

On 3/12/21 12:06 PM, He Ying wrote:
> The variable 'uaccess_fulsh' is not referenced outside the file. Perhaps we
> should define it as static to avoid the warning as follows:
> 
> arch/powerpc/kernel/setup_64.c:953:6: warning: symbol 'uaccess_flush'
> was not declared. Should it be static?
> 
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: He Ying <heying24@xxxxxxxxxx>
> ---
>  arch/powerpc/kernel/setup_64.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
> index 560ed8b975e7..22aca271496b 100644
> --- a/arch/powerpc/kernel/setup_64.c
> +++ b/arch/powerpc/kernel/setup_64.c
> @@ -950,7 +950,7 @@ static bool no_entry_flush;
>  static bool no_uaccess_flush;
>  bool rfi_flush;
>  bool entry_flush;

I think this is the case also for entry_flush. compiling with W=1 will tell you more.

Thanks,

C. 

> -bool uaccess_flush;
> +static bool uaccess_flush;
>  DEFINE_STATIC_KEY_FALSE(uaccess_flush_key);
>  EXPORT_SYMBOL(uaccess_flush_key);
>  
>